.iframe-container h3 {
  font-size: 1.3em;
  color: #2196f3;
}

.iframe-container h3 a {
  font-size: 0.7em;
  text-decoration: none;
}

.iframe-container iframe {
  width: 100%;
  height: 400px;
  border: 1px solid #ccc;
  border-radius: 0.5em;
  margin-top: 0;
}